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<script>
    //有一个包含工资的数组[1500,1200,2000,2100,1800]，
    //要求把工资超过2000的删除，剩余的放到新数组中
    var arr = [1500,1200,2000,2100,1800];
    var newArr = [];
    for(var i = 0 ; i<arr.length;i++){
        if(arr[i]<2000){
            // newArr[newArr.length] = arr[i];
           newArr.push(arr[i]);
        }
    }console.log(newArr);
</script>
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